Mold.



W. BINNING.

MOLD.

APPLICATION rILED DEU. 12, 1912.

hlmw Patented Mar. 23, 1915.

2 SHEETS-SHEET 1.

WITNESSES THE MORRIS PETERS Cu., PHOTO-IJTHO.v WASHINGTON. a i

W. BINNING.

MOLD.

APPLICATION FILED DBO. 12. 1912.

Patented Mar. 23, 1915.

2 SHEETS-SHEET 2.

l 9 l 39 :.1: .I

ATTO R N EY THE NoRRAs PErERb CO PHGTO Url-10.. WASHVNGTON. D. c.

villltllFlBlD FTTF@ WOOD BINNING, OF GRAND RIVER, IOWA.

MOLD.

Application led December 12, 1912.

To all whom t may concern.'

ABe it known that I, W'ooD BINMNG, a

citizen of the United States, residing at.

V of a lonO', thin block.

By the present invention the mold is light and readily transferable, so that it is possible to produce a block much longer and of materially less thickness than heretofore and to permit the making of the blocks materially faster than where pallets are ein ployed.

lWith a mold of the present invention the blocks as formed are long, relatively wide or high and thin and too frail to be carried on edge on a pallet, for in order to transfer a block on a pallet it must be made thick, short and low, hence requiring a larger amount of material with respect to the surface produced than with the present invention, by which latter there may be produced blocks especially adapted for hollowewall buildings, light strong partitions, and curtain walls.

ln actual practice a block containing the same surface as those heretofore constructed may be made with approximately one-half the material and the saving of nearly or quite two-thirds the labor.

lV ith the present invention it is practicable to make blocks either' straight or curved from one inch to four inches thick, and, if curred, for circles ranging from one foot to thirty feet in diameter. Moreov r, the mold of the present inif'ention will take mixture as wet as a mold employing a pallet and the structure of the mold permits the taking of the mold itself with the inclosed molded block directly from the tamping table to the sand where the green block is readily de posited by the simple operation of opening the mold, and the latter is so constructed that the block is released, without injury, by minimum opening movement of the mold. AA@all this is brought about by providing a mold with two sides or members held together at Specification of Letters Patent.

rmember shown in Figs. 5 and 6.

1Bate/nated Mar. 23, 1915..

serial No. 736,385.

one end by a hinge, and at the other' end by a latch or other suitable fastening device, and the structure is such that the mold is markedly rigid when hitched together with the concrete mixture therein, so that despite the fact that the molded block is too thin and frail to permit the transference on a pallet, it may be readily transferred from the tamping table to the sand while still inclosed in the mold without injury and may be there deposited also without injury.

rlhe invention will be best understood from a consideration of the following detailed description taken in connection with the accompanying drawings forming a part of this specification, with the further un derstanding that while the drawings show a practical form of the invention the latter is not confined to any exact conformity with the showing of the drawings but may be changed and modified so long as such changes and modifications mark no material departure from the salient features of the invention.

ln the drawings Figure 1 is a perspective view of a mold constructed in accordance with the present invention and de signed for the production of a long, thin, straight block. Fig. 2 is a section on the line 2-2 of Fig. 1. Fig. 3 is a section on the line 3 3 of Fig. 2. Fig. 4t is a section similar to that of Fig. 2 but showing the mold open and indicating a molded block in dotted lines. Fig. 5 is a longitudinal vertical section of a mold such as shown in Fig. 1 with the addition of a corrugated member for the production of ventilating blocks and also the addition of a strip for filling in a bead groove indicated in Figs. 1 and 3. Fig. 6 is a section on the line 6-6 of Fig. 5. Fig. 7 is a section similar to Fig. 6 except that the corrugated strip is omitted and a facing plate is shown applied to the mold. Fig. 8 is a perspective view of the bead eliminating strip shown in Figs. 5 and 6. Fig. 9 is a perspective view of the corrugated 10 is a perspective view of the facin 0' strip shown in Fig. 7. Fig. 11 is a perspective view of a curved mold form constructed on the same general lines as Fig. 1.

rlhe mold box or body comprises two generally similar members each consisting of longitudinal strips 1, 2 with connecting end plates 3 and an intermediate longitudinal strip d. The strips 1 and 2 may be of substantially the same width, but the strips l are made considerably thicker than the strips 2, thus permitting the 'formation in' inner face of the mold member in a direction' substantially perpendicular thereto and of a length to reach to and overlap to an extent the corresponding end of the other mold member when the mold is closed, as will hereinafter appear.

The end board 6 of one mold member is connected to the corresponding plate 3 of the other mold member by hinges 7, these hinges constituting effectively a single hinge, that is, the two mold members are hinged together at one angle only, so that the mold may be said to have but a single hinge connection. rThe diagonally opposite plate 3 carries hasps 8, while the adjacent end board 6 of the other mold section is provided with staples 9 over which the hasps may engage to hold the mold sections in the closed position,l in which position they may be retained by pins or any other suitable devices for the purpose. Fast to the plate 3 remote from that carrying the hasps, but belonging to the same mold section is a filler block 10 constituting' that end of the mold chamber of the mold box corresponding to the end of the mold lwhere the hinge connection is placed. This hinge connection is so disposed as to be at some considerable distance from the corresponding end of the mold chamber, and consequently the inner face of the filler block l@- will, when the mold is open, move rapidly away from a molded block lodged in the mold box.

It will be noted that the hinge connection is located on the outside of the mold at the angle formed by the end of end board 6, and the contiguous end oi side plate 3, and because or" this relation of the hinge to the parts which it connects, it is placed at least one inch out of the longitudinal line of the molded article. The least motion of the hinge after unlatching the mold would serve to completely release the molded block provided the hinge was stationary, but in actual practice, the hinge is not stationary, due to the vibration of the armv of the operator, and a quicker clearance is sought and attained by setting the hinge farther from the molded article, or the latter farther from the hinge, by means oi the said filler block. The quicker clearance is desired to counteract the vibration mentioned above.

In order to provide side members forA thc mold chamber of suitable strength and yet without materially adding to the weight of the mold, sheet metal members l] are provided, these members being secured to thc inner faces of the strips l. and Q and to the end boards 6, while the internal pressure of the cement mixture when placed in the mold box is resisted b v the strips l, so that the mold may be oi.t extremely light construetion and yet amply strong, tor the various strips, plates and boards may be ilormed oi wood which has the advantage ot lightness and strength and those 'laces of the mold chamber against which the cement mixture contacts may be made oi protected sheet metal such as galvanized iron, which has the further advantage ot being non-adhesive to the cement mixture. Besides the plates 11, the top and bottom edges ot the mold box may YLe provided with strips 1L) ot galvanined sheet metal. which have the iurther purpose of wear plates. rlhe plate 1l oi that member of the mold box provided with a groove or channel 5 is made to con'lorm to such groove or channel, as best indicated in Figs. l and 3.

lith a mold box as described the mold is closed and provides an elongated thin chamber into which the cement mixture or concrete is introduced, the mixture being of about the same consistency with respect to the amount ot water present as is customarily employed, that is, being of a consistency customarily termed semi-dry. This mixture is tamped in the mold in the usual manner. In practice the mold may be ot such sire as to produce block of, say, two to two and one-half inches thick, nine inches wide and thirty-two inches long, although these particular dimensions may vary considerably, but still the block is long in comparison to its thickness and is of such shape that if the attempt were made to transfer the block upon a pallet while the block is green, from the ramping table to the sand the block would simply collapse. However', a mold constructed as described is not only amply strong but so light, and the block is made so thin with respect to its other dimensions that the weight of' the mold with the block therein permits the ready transference ot the mold and block from the tamping table to the sand before the mold is opened, and without danger to the block. 'Not only is the mold strong, but it is par- Iricularly rigid, this being due to the comparatively wide longitudinal edge members l and 2 which impart rigidity to the mold without adding materially to the weight thereof, and further the single hilxge connection permitting the opening and closing ot the mold also contributes to the rigidity of the mold, thus making the transference of. the mold with the block therein without the necessity of a pallet feasible. The tillcr block l0 also contributes to the rigidity of Y the mold at the hinged end and, moreover', spaces the corresponding end of the block a sufficient distance from the hinge, which latter is located at one corner or angle of the mold, so that when the mold is opened that end of the mold chamber determined by the block 10 is moved rapidly away from the molded article and there is no liability of injury to the corresponding end of the molded article due to scraping of the hinged end of the mold chamber along the molded article, this latter trouble being` common in molds where the hinges are closely related to the corresponding end of the mold chamber.

lilith a mold such as s own in Figs. 1 and 3 there is produced a straight, thin block of comparatively great width with respect to the thickness and along one edge there is produced a bead corresponding to the groove or channel 5, such construction being advantageous for certain purposes. lf it be desirable to produce a block of even thickness throughout omitting the bead, then thegroove or channel 5 is filled up by an appropriate strip 13 shown separately in Fig. 8, this strip having facings la formed of strips of suitably galvanized sheet metal where liable to contact with the concrete mixture. rlie strip 13 may have perforations 15 at appropriate points for the passage of screws or other fastening devices serving to hold the strip removably in place.

For some purposes it is desirable that one edge of the thin block have appropriately formed notches or recesses therein, and for such purpose there is provided a board 16 which may constitute a bottom board for the mold chamber and of an appropriate size to receive the mold when closed, and this board carries suitably spaced blocks 17 preferably, though not necessarily, tapering from the board 16 to their free ends. rlhese blocks 17 are of a size to tit snugly between the side walls of the mold chamber, entering such chamber for an appropriate distance, while those faces of the blocks and of the board 16 presented toward the interior of the mold chamber and subject to contact with the concrete mixture have a covering 18 of galvanized sheet metal. rThe arrangement of the recess forming bottom member for the mold chamber is shown in Figs. 5, (l and 9. Again, it is desirable to provide the blocks with ornamental faces which are designed to be exposed to view in a finished structure. For this last purpose there is provided a frame 19 of a size to it snugly within the mold chamber against one face plate 117 and this frame carries a facing 2O which may be more or less dished within the confines of the frame 19 to constitute a molding face which will produce any ornamental effect desired, and this portion 20 of the facing structure may be formed of galvanized sheet metal as are other parts of the mold Where exposed to contact with the concrete mixture. The frame may be strengthened and protected by sheets 21 of metal and holes are formed through the frame and the metal sheets7 wherever desirable for the attachment of the facing frame to the corresponding mold member. rllhe facing frame 19 of course occupies some of the interior space of the mold chamber and causes the production of a thinner block than when the facing structure is omitted.

lllhile the foregoing description has been directed to what may be termed a straight mold, the structure is adapted to the production of curved blocks by making the mold aiipropriately curved, and such a mold is illustrated in Fig. 11. Since the structure of the curved mold may be in all respects like that of the straight mold of the other figures except that the parts are curved instead of straight, no detailed description of this mold is deemed necessary. i-he showing of Fig. 11 may be considered indicative of any suitable type of curved mold which may differ quite markedly from the showing of Fig. 11e but in all instances the material features of the invention are retained even though the embodiments of the invention vary from the showing of the drawings because of the different shapes of block which it may be desirable to produce.

'lhe corrugated molding member illustrated separately in Fig. 9, the strip 13 illustrated separately in Fig. 8, and the facing member illustrated in Fig. 10 may be taken as indicative of any suitable means introducible into the molding chamber for varying the article or articles to be produced. but the presence or absence of these structures does not change the function of the mold which permits the production of thin blocks adapted to many building purposes and the construction of a mold so light and rigid as to permit the transfer of such thin blocks while still in the green state without damage to the blocks. l

The recess forming member 162-17 has the blocks 1'? so related to the thickness of the mold chamber when the mold members are close together that these blocks will be .firmly clamped. wherefore the board 1G with the bloclqs 17 may be. transported with the mold from the taniping table to the sand at ivl'iich point the mold may be so placed that the board 1G is uppermost before the mold is opened.

The particular' advantage of the structure disclosed in Figs. 5. (i. and 9 is that by this construction of mold. l am enabled to produce a. long. thin block. havin g notches or recesses at one edge. A. block of this construction is of particular advantage in the construct-ion of corn cribs and other places where a ventilated structure is desired, for the notches or recesses in the edge of the block provide openings in the strueture for the passage of air.

That is claimed is l. A mold structure freely open at the ,top and bottom and comprising two members, each comprising one side and one end of the mold structure, a` single hinge oonnecting the side of one member with the adjacent-end. of the other member, a fastening means for connecting the two members together, a board arranged exteriorly of the mold structure and separate therefrom and having greater dimensions than the latter and constituting a bottom board for the mold chamber, and spaced blocks provided on the board and of a size to lit snugly between the side walls of the mold structure, whereby when the members of the mold structure are fastened together, the bloclis will be firmly clamped, and the board hayingther blocks may be transported Ywith the mold.

2. mold structure freely open at the top and bottom and comprising two members, a board arranged eXteriorly o'l the mold structure and separate therefrom and haring greater dimensions than the latter and constituting a bottom board vfor the mold chamber, spaced blocks provided on the board and of a size to lit snugly between the walls of the two members, and means 'for Jastening the members together, whereb \v the blocks are lirmly clamped and the board haring the blocks may be transported with the mold, the blocks enabling a concrete block to be formed with notches or recesses along one edge.

n testimony` that l claim the foregoing as my own, l have hereto aiixed my signature in the presence of two witnesses.

YWOOD BNNING. Witnesses Clins. KELLm', Janus Danen'rox.

Copies of this patent may be obtained for tive cents each. by addressing the Commissioner of PatentsA Washington, D. C. 

